Hydrogen gas sensing methods, materials, and approach to achieve parts per billion level detection: A review

By P. Chauhan, S. Bhattacharya. International journal of hydrogen energy, 2019

200 citations recorded by the source corpus.

Abstract Being a clean source of energy, hydrogen gas is in high demand in various industrial and commercial applications. However, the explosive nature of H2 gas above 4% concentration makes it highly dangerous to store, transport and use. Further, the small size gas molecules of H2 are prone to leak through the smallest possible holes and cracks. Hence, the detection of H2 gas becomes essential even at trace levels. This article reviews various gas sensing strategies including methods, materials, and integrated systems available for the sensitive detection of H2 gas for a bunch of different applications. The article also reviews some approaches which are available in the literature to detect parts per billion (ppb) level of H2 gas concentrations. This review article aims at explaining the different aspects of H2 gas sensing technology in a simple yet exhaustive manner.

Subfields: Bioengineering, Biomedical Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/b15fc1d6625911deaa27a7a6b09efd28b475056e